1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Korolek [52]
2 years ago
10

I need help plssssss

Mathematics
1 answer:
Black_prince [1.1K]2 years ago
5 0
Substitute the values given.
-2-3(2) then solve
Your answer should be -8
You might be interested in
y = 2x squared + 5x -3 can be written in the form y= 2( x+a) squared + b . Find the value of a and the value of b.
Elan Coil [88]

General vertex form:

y = m(x − a)² + b  \: with  \: vertex \:  at \:  (a, b)

Given :

y = 2x² + 5x  - 3

Extract "spread factor" m

y = 2( x² +  \frac{5}{2} x) - 3

Complete the square

y = 2(x²  +  \frac{5}{2}x + ( \frac{5}{4})²) - 3

- 2( \frac{5}{4})²

Write as a squared binomial and simplify the constant

y = 2(x +  \frac{5}{4})² - 6 \frac{1}{8}

Re-write to match signs of standard general form:

y = 2(x - ( -  \frac{5}{4}))² \:  + ( - 6 \frac{1}{8})

3 0
2 years ago
Select Repeating or Nonrepeating to correctly classify each decimal.
astraxan [27]

Answer:

They all reapeating exept C

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The ratio between the square of a number and it's cube is 1:3 what is the number ​
Dimas [21]

Answer:

3

Step-by-step explanation:

Call that number “x”

The square of that number is x^2

Also as the cube is x^3

The ratio between these 2 values is 1:3, this means x^2 / x^3 = 1 / 3

<==> 1 / x = 1 / 3 (eliminate “x^2” for numerator and denominator of the fraction x^2 / x^3 )

<==> x = 1 * 3 / 1 = 3

So, that number is 3 ! This math problem seems simple ;)

4 0
3 years ago
Evaluate the expression into simplest form
sattari [20]
Work  out  the top subtraction first:

3/9 -  8/12

= 1/3 - 2/3

= 1/3


and the bottom part:-

3/8 * 2 = 6/8 = 3/4

so now we divide -1/3 by 3/4

= -1/3 * 4/3  = -4/9

5 0
3 years ago
Write the equation of the line in fully simplified slope-intercept form.
Bad White [126]

Answer:

y = -\frac{2}{5} x-6

Step-by-step explanation:

1) First, find the slope of the line. Use the slope formula m =\frac{y_2-y_1}{x_2-x_1}. Pick two points on the line and substitute their x and y values into the formula, then solve. I used the points (-5,-4) and (0,-6):

m = \frac{(-6)-(-4)}{(0)-(-5)} \\m = \frac{-6+4}{0+5} \\m = \frac{-2}{5} \\  

So, the slope of the line is -\frac{2}{5}.

2) Next, use the point-slope formula y-y_1 = m (x-x_1) to write the equation of the line in point-slope form. (From there, we can convert it to slope-intercept form.) Substitute values for the m, x_1 and y_1 into the formula.

Since m represents the slope, substitute -\frac{2}{5}  in its place. Since x_1 and y_1 represent the x and y values of one point on the line, pick any point on the line (any one is fine, it will equal the same thing at the end) and substitute its x and y values in those places. (I chose (0,-6), as seen below.) Then, with the resulting equation, isolate y to put the equation in slope-intercept form:

y-(-6) = -\frac{2}{5} (x-(0))\\y + 6 = -\frac{2}{5} x\\y = -\frac{2}{5} x-6

6 0
3 years ago
Other questions:
  • Write the quadratic equation in standard form:
    14·1 answer
  • NOT A MATH QUESTION!!! JUST A LIFE QUESTION....
    13·1 answer
  • The Taieri Plain in New Zealand is 6 feet below sea level (or –6 feet). If you are standing 3 feet above sea level, is your elev
    10·2 answers
  • If x and y are two nonnegative numbers and the sum of twice the first ( x ) and three times the second ( y ) is 60, find x so th
    5·2 answers
  • 3t/2+7=4t-3<br> please answer asap and step by step please
    8·2 answers
  • Geometry! Please help!
    11·2 answers
  • Hich sequences are geometric? Check all that apply.
    13·1 answer
  • There are 361 seventh-grade students going on a field trip. If each bus holds 40 people and there are 20 chaperones going, how m
    6·2 answers
  • Tom swam to the bottom of a swimming pool that was 9 feet deep and he touched the
    8·1 answer
  • Supposed that 2000is placed in an account that pays 14% each year no withdrawals are made from the account
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!